
Flea preventatives
have come a long way in safety and efficacy from the flea dips and collars of
the past. Many of the newer products
available are: 1) easier to use 2) safer and 3) kill fleas in all their
life stages, thus shortening infestation times.
With all the new products available, one might wonder about which
products are the safest and most effective for their cat.
The most important thing to realize is that cats
can be sensitive to any medication. Most
of the older products and some of the products that are still currently
available contain insecticides called permethrins or pyrethroids. When used in proper concentrations, many
toxicologists believe these formulations to be safe. However, in smaller or sick or debilitated
cats, the recommended concentration (as labeled on the package) may still
produce an adverse reaction. The real
concern is when higher concentrations of insecticide, like the amount found in
dog products of the same formulation, are administered to cats. The severity of toxicity is specific to each
cat, meaning that some cats are extremely sensitive to even small doses, while
others may show no signs of toxicity at all.
Symptoms of pyrethrin/pyrethroid toxicity include: muscle tremors or
twitching, excessive salivation, lethargy, decreased appetite, vomiting and
seizures. Onset of clinical signs may occur within a few hours or may take as
long as a day. Treatment involves supportive care and hospitalization.
** Use only products labeled for use in cats! Formulations labeled for
dogs often contain levels of medication that are toxic for cats. **
Luckily, many
newer products available both by prescription and over-the-counter are
formulated without these insecticide products.
These medications contain compounds that target only the nervous system
of fleas and are safe for cats. If side
effects do occur, they are typically limited to: 1) hair loss at the site of
application 2) salivation if the product is ingested or 3) lethargy.
Available and Safe Flea Control Products:
REVOLUTION*
VECTRA*
VECTRA*
*Available
at Cats Exclusive Veterinary Center
ADVANTAGE
FRONTLINE PLUS
FRONTLINE PLUS
Flea Control Products that ARE
NOT Recommended:
If you use these products, please use them with caution and only use
those approved for cats!
Over-the-counter (OTC) shampoos,
dips, collars, and foggers: (Hartz, Sergeants, Bio-Spot,
Kirkland Brand): Contain permethrin insecticides which can be toxic to cats.
Natural flea remedies:
Essential oils (Tea Tree, Cedar, Eucalyptus, Citronella, Peppermint,
Neem, Limonenes): Cats do not metabolize
essential oils effectively, so application of oils through collars or spot-on
products may cause toxicity. All
essential oils are potentially toxic in cats.
Symptoms of toxicity include lethargy, decreased appetite, vomiting and
dizziness.







